// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 12.2.8.5
description: Object reference in expression position of TemplateMiddleList
info: |
    TemplateMiddleList : TemplateMiddle Expression

    1. Let head be the TV of TemplateMiddle as defined in 11.8.6.
    2. Let sub be the result of evaluating Expression.
    3. Let middle be ToString(sub).
    4. ReturnIfAbrupt(middle).
---*/

function Test() {
    var plain = {};
    var custom = {
      toString: function() {
        return '"own" toString';
      }
    };

    assert.sameValue(`${0} ${plain}`, '0 [object Object]');
    assert.sameValue(`${0} ${plain}`, '0 [object Object]');
    assert.sameValue(`${0} ${plain}2`, '0 [object Object]2');
    assert.sameValue(`${0} ${plain}2`, '0 [object Object]2');

    assert.sameValue(`${0} ${custom}`, '0 "own" toString');
    assert.sameValue(`${0} ${custom}`, '0 "own" toString');
    assert.sameValue(`${0} ${custom}2`, '0 "own" toString2');
    assert.sameValue(`${0} ${custom}2`, '0 "own" toString2');
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
